CN104771281B - Multifunctional wheelchair - Google Patents
Multifunctional wheelchair Download PDFInfo
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- CN104771281B CN104771281B CN201510204817.5A CN201510204817A CN104771281B CN 104771281 B CN104771281 B CN 104771281B CN 201510204817 A CN201510204817 A CN 201510204817A CN 104771281 B CN104771281 B CN 104771281B
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- wheelchair
- slide rail
- seat plate
- connecting rod
- backrest
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Abstract
The invention relates to a multifunctional wheelchair, which comprises a wheelchair framework, a reciprocating moving conversion mechanism, a switchable overrunning clutch mechanism, a five-item chair linage mechanism, a telescopic folding and unfolding storage plate mechanism and a seat plate convenient for toilet and convenient to be cleaned, wherein the reciprocating movement conversion mechanism, the switchable overrunning clutch mechanism and a hand braking mechanism are combined for completing the linear reciprocating movement conversion of an armrest into circumferential reciprocating movement, and the circumferential reciprocating movement is further converted into the circumference movement of a synchronous belt driving wheel, so that a user can drive driving wheels of the wheelchair to do positive/reverse movement and brake only through the armrest. The simultaneous linkage of five aspects including a head cushion, a folding backrest, a back rest, a seat plate and pedals can be realized through the five-item linkage mechanism, further, the user can regulate the sitting posture at any time, the body can extend, and the sedentariness patient can favorably recover. The telescopic folding and unfolding storage plate mechanism is convenient for article placement on the wheel chair, so that the daily activities such as drinking and eating, writing and Internet surfing of the user can be more convenient and faster.
Description
Technical field
The invention belongs to wheelchair field, more particularly to a kind of contribute to healthy with multifunctional wheelchair that is conveniently going to toilet.
Background technology
Current manual wheelchair is substantially the handwheel by manual actuation wheelchair both sides, so as to drive driving wheel to move,
Need user's two-arm to open, forward lean, stir handwheel.Although handwheel is direct with the mode of capstan drive, use
The mode that person stirs handwheel is extremely inconvenient, and easily fatigue.It is even more especially when there is the gradient on road surface and is difficult to control.Such wheelchair
It is more the angle from convenient nursing, we therefore see that under normal circumstances such wheelchair is by caregiver in one kind
Under the motion state that member promotes.
At present the seat of the preferable wheelchair of quality is all that, according to human engineering principle design, some backrest angles are adjustable, have
A little pedal link angles are adjustable, but this regulation is mostly completed by nursing staff, and part electric wheelchair can pass through electronic
Mode is adjusted respectively, but is confined to the regulation of backrest and pedal link angle more, and this is for long-term wheelchair-bound trouble
It is far from being enough for person.In the daily life of one normal person, the often difference such as office chair, leisure chaise longue, sofa, chaise longue
Seat between change, wherein the ergonomic that every kind of state has its different sets design requirement.Moreover, people often exist
Sit for a while after a period of time, sitting posture automatic can carry out left and right sides conversion, the time length of seat, needs are stood up and unfolded
Body.Thus it will be seen that the design of wheelchair seat at present is far from for the individuals with disabilities of sitting of having to
No more.Furthermore, when user drives wheelchair, it is impossible to while hold article in hand, such as water tumbler etc., and this inconvenience is daily
Usually can run in life.
The problem of going to toilet is often individuals with disabilities to one of key factor of nursing staff's dependency degree, current settling mode,
One kind is that bedpan is placed under seats, and this mode still needs nursing staff, and another kind is chair for closet, and this mode is needed
Want patient to switch therebetween, and change between the seat of four provided with wheels, for the personage of lower limb disability not
Can be light and safely accomplish.
In view of above-mentioned defect, the positive in addition research and innovation of the design people, to founding a kind of multifunctional wheelchair so as to
With more the value in industry.
The content of the invention
To solve above-mentioned technical problem, it is an object of the invention to provide one kind is easy to operation, can at any time adjust sitting posture, convenience
The multifunctional wheelchair for using.
The multifunctional wheelchair of the present invention, including wheelchair frame of the bottom equipped with universal wheel and driving wheel, wheelchair frame is provided with
Seat plate, backrest and pedal, in the both sides of wheelchair frame handrail reciprocation conversion mechanism is separately installed with, described reciprocal
Movement conversion mechanism include move back and forth handrail, support bar, pulley, guide rail, swing connecting bar, rotary shaft, the swing arm with slide rail,
Slide block and a set of changeable overrunning clutch mechanism are swung, the reciprocating motion handrail lower section passes through support bar and is arranged on guide rail
Interior pulley connection, the lower section of pulley be connected with two swing connecting bars being hinged, described swing arm one end with slide rail and swing
Rod hinge connection, the other end of the swing arm with slide rail is connected in wheelchair frame by bearing, is arranged in the swing arm with slide rail
There is swing slide block, swing slide block and be connected with the changeable overrunning clutch mechanism, will be past by the reciprocation conversion mechanism
The straight reciprocating motion of multiple moving handrail is converted into and swings the circular motion of slide block, then is driven by changeable overrunning clutch mechanism
The driving wheel of wheelchair is moved forward or backwards.
Further, the changeable overrunning clutch mechanism include closing piece connecting rod, rotary shaft, surmount forward or backwards from
Close, the closing piece connecting rod by swing slide block be connected to rotary shaft, rotary shaft is connected in wheelchair frame by bearing, rotary shaft with
Forward or backwards overdrive clutch is connected, and rotary shaft is provided with Timing Belt driving wheel, and Timing Belt driving wheel is by Timing Belt and wheel
The coaxial Timing Belt driven pulley connection of chair driving wheel, Timing Belt driving wheel inner side two ends are provided with spring closing piece, two spring closing pieces
The two ends of closing piece connecting rod are separately fixed at, closing piece connecting rod is provided with two connecting rod sliders, and rotary shaft is provided with a gear, gear side
Face is provided with two radial direction slide rails, and during rotate gear, connecting rod slider moves up and down in the spacing lower drive closing piece connecting rod of radial direction slide rail,
Connecting rod slide rail outside is provided with two buckles and is provided with a swingable thumb wheel, thumb wheel to lock the state of the connecting rod, gear outside
It is connected with course changing control handle by wheel connecting rod, when commutation is needed, rotates course changing control handle, drives thumb wheel tooth engaged
Wheel, gear driven closing piece link motion, so as to drive former locking closing piece to depart from, while another closing piece locking, so as to complete to turn
To control.
Further, the multifunctional wheelchair also includes five seat cushion linkage mechanisms, and five seat cushion linkage mechanisms include seat
Link while position plate, pedal, backrest, folding back and headrest, seat plate front lower portion is hinged with pedal connecting rod, ride
Plate connecting rod lower end is fixedly connected with pedal, and headrest is attached with folding back by multistage articulated linkage and fold latch button,
Folding back is attached again by multistage articulated linkage, folding lock with backrest, and backrest is provided with Lumbar spring steel plate, Lumbar
Pad is close to the setting of Lumbar spring steel plate, and the lower section side of backrest is provided with air pressure rod, and air pressure rod is controllable type air pressure rod, air pressure rod
One end is hinged wheelchair frame rear end, and the other end of air pressure rod is hinged seat plate, and seat plate both sides front end is respectively provided with slide block, backrest with
Seat plate is hinged, and backrest both sides lower end is respectively provided with slide block, and wheelchair frame is respectively equipped with a line slide rail and one before and after left side
Circular arc, wheelchair frame is also respectively equipped with a line slide rail and a circular arc before and after right side.
Further, the seat plate includes that L-shaped plectrum, plectrum slide rail and wheelchair frame are slided with the linkage part of pedal
Rail, L-shaped plectrum is articulated with wheelchair frame, and L-shaped plectrum is provided with plectrum slide rail, and plectrum slide rail sets with wheelchair frame slide rail into one
Determine angle, the slide block of seat front edge of board simultaneously in plectrum slide rail and wheelchair frame slide rail, slide block be separately hinged one before push rod, it is front
The push rod other end and pedal rod hinge connection, when slide block is moved forward, plectrum slide rail progressively overlaps with wheelchair frame slide rail, L-shaped
The other end of plectrum slowly jack-up seat plate, while promoting pedal connecting rod to lift.
Further, the linkage part of the backrest, folding back and headrest includes that fixed chute, rotatable locking are slided
Groove, push rod slide block, Lumbar spring steel plate, folding back, headrest, multistage articulated linkage and slide rail, fixed chute is arranged on wheelchair
On framework, rotatable locking chute is arranged on backrest, and when backrest hypsokinesis, push rod slide block is deviate from and to can turn from fixed chute
Dynamic locking chute movement, by the motion of multistage articulated linkage drive waist rest cushion being closed flat and folding back and headrest
Rise, by push rod slider locks after push rod slide block enters rotatable locking chute, backrest can continue to adjust inclination backward.
Further, seat plate middle part is oval hole, and the soft cushion of two pieces of rectangles, seat are additionally provided with seat plate
The oval hole location of position plate is provided with and the oval seating pad for coincideing and being divided into two pieces of left and right, the quality and seat of the seating pad
Position plate is identical.
Further, the multifunctional wheelchair also includes hand-operated breaking mechanism, and hand-operated breaking mechanism is arranged on reciprocating motion
The lower section of handrail, including disc brake, brake lever, one end of disc brake and one end of brake lever are respectively hinged in wheelchair frame,
It is attached with brake bracing wire between disc brake and brake lever, the top of brake lever is provided with spring lock.
Further, the multifunctional wheelchair also includes the scalable shelf mechanism that takes down the exhibits, the scalable glove of taking down the exhibits
Trigger structure is arranged at the lower section that wheelchair both sides move back and forth handrail, including shelf, articulated linkage, and shelf makes with articulated linkage
It is attached with rotatable lock, after shelf launches, rotates the knob on shelf, the shelf of both sides is connected as into one
Body.
Further, the base plate with seat plate with elliptical shape is additionally provided with the seat plate, side is provided with seat plate
Hinge, hinge snaps connection base plate by hinge, and the opposite side of base plate is connected under seat plate by lock.
Further, the two pieces of seating pads in the left and right can be connected as one with the soft cushion in upper strata, also can independently be used.
By such scheme, the present invention at least has advantages below：
1st, flexible and convenient operation, the present invention passes through reciprocable switching mechanism and changeable overrunning clutch mechanism by handrail
Convert reciprocating motion be swing slide block circular motion, allow user to move back and forth by only relying on handrail, eliminate
The trouble of wheel is stirred with hand, when especially running on the slope, due to the intervention of changeable overrunning clutch mechanism, user's force
It is more convenient；And telescopic headrest and folding back make the wheelchair compact and flexible when running, and can open in time when lying fallow
Necessary support is provided for user.
2nd, the association that five seat cushion linkage mechanisms pass through articulated linkage, rotary shaft, closing piece, slide block, chute and air pressure rod etc.
Same-action, completes to be linked while five aspects such as seat plate, pedal, backrest, folding back and headrest, and user can sit
Can lie, and can at any time adjust sitting posture, the pressure-bearing position of body is also changed therewith, help user to solve because sitting posture is made long
Into bedsore problem；Meanwhile, the linkage of whole body also contributes to user to body movement and the appropriate requirement taken exercise, the quilt of lower limb
Dynamic motion is also extremely advantageous to the rehabilitation of patient.
3rd, it is convenient that the seat plate with oval hole allows user to go to toilet, and left and right sides status will not when user goes to toilet
Left and right cushion and seating pad remove, go to toilet after finishing, can be latched with opens voluntarily base plate, and then be about to certainly base plate remove into
Row cleaning, ensures that whole wheelchair clean hygiene.
4th, the shelf and articulated linkage below two side handrails is attached by rotatable lock, in shelf exhibition
After opening, the knob on shelf is rotated, the shelf of both sides can be connected as one, thus convenient use person is on wheelchair
Placing articles, make diet, the daily routines such as write, surf the Net more convenient.
Described above is only the general introduction of technical solution of the present invention, in order to better understand the technological means of the present invention,
And can be practiced according to the content of specification, below with presently preferred embodiments of the present invention and coordinate accompanying drawing describe in detail as after.
Description of the drawings
Fig. 1 is the wheelchair side view of the present invention；
Fig. 2 is the wheelchair manual transmission figure of the present invention；
Fig. 3 is overdrive clutch switching mechanism axial view；
Fig. 4 is overdrive clutch switching mechanism outer radial figure；
Fig. 5 is overdrive clutch switching mechanism buckle figure；
Fig. 6 is overdrive clutch switching mechanism radial direction closing piece mechanism map；
Fig. 7 is wheelchair seat deflection figure；
Fig. 8 is wheelchair seat side view；
Fig. 9 is wheelchair seat seat plate link gear side view；
Figure 10 is wheelchair backrest bottom gear composition；
Figure 11 is wheelchair backrest bottom link gear hypsokinesis schematic diagram；
Figure 12,13 are wheelchair backrest middle part waist rest cushion gear compositions；
Figure 14,15 are wheelchair backrest folding back gear compositions；
Figure 16,17 are wheelchair backrest headrest link mechanism figures；
Figure 18-20 is wheelchair linkage process state diagram；
Figure 21 is the scalable shelf mechanism map of taking down the exhibits of wheelchair；
Figure 22 is the detachable toilet chair plate mechanism map of wheelchair.
1 moves back and forth handrail；2 support bars；3 pulleys；4 guide rails；5 swing connecting bars；6 Timing Belts；7 swing arms with slide rail；8
Swing slide block；9 rotary shafts；10 overdrive clutch forward or backwards；11 Timing Belt driving wheels；12 spring closing pieces；13 closing piece connecting rods；14
Connecting rod slide rail；15 connecting rod sliders；16 gears；17 radial direction slide rails；18 buckles；19 thumb wheels；20 wheel connecting rods；21 course changing control hands
Handle；22 multistage articulated linkages；23 Timing Belt driven pulleys；24 headrests；25 folding backs；26 backrests；27 pedals；28 pedals connect
Bar；29 push rod slide blocks；30 closing pieces；31 air pressure rods；321st, 322 slide block；33 circular arcs；34L shape plectrums；35 plectrum slide rails；36
Front push rod；37 seat plates；40 waist rest cushions；41 soft cushions；42 seating pads；43 base plates；44 hinges；45 fixed chutes；46 locks；
47 shelfs；48 articulated linkages；49 knobs；501st, 502 rocking bar；51 fold lock；52 universal wheels；53 driving wheels；54 shift forks；55
Two grades of shifting blocks；56 blocks；57th, 58,59,71,72 axle center；60th, 68,65 push rod；61st, 63,69 chute；62 secondary push rods；64 waists
Support；66th, 67,70,73,74 pin joint；75 rotatable locking chutes.
Specific embodiment
With reference to the accompanying drawings and examples, the specific embodiment of the present invention is described in further detail.Hereinafter implement
Example is not limited to the scope of the present invention for illustrating the present invention.
Referring to Fig. 1-2 2, a kind of multifunctional wheelchair described in a preferred embodiment of the present invention, including bottom are equipped with universal wheel
52 and the wheelchair frame of driving wheel 53, wheelchair frame is provided with seat plate 37, backrest 26 and pedal 27, in wheelchair frame handrail
Both sides be separately installed with reciprocation conversion mechanism, the reciprocation conversion mechanism includes moving back and forth handrail 1, support bar
2nd, pulley 3, guide rail 4, swing connecting bar 5, rotary shaft 9, the swing arm 7 with slide rail, swing slide block 8 and it is a set of it is changeable surmount from
Mechanism is closed, the lower section of the reciprocating motion handrail 1 is connected by support bar 2 with the pulley 3 being arranged in guide rail 4, the lower section of pulley 3
It is connected with the swing connecting bar 5 that two are hinged, described one end of swing arm 7 with slide rail is hinged with swing connecting bar 5, the swing with slide rail
The other end of bar 7 is connected in wheelchair frame by bearing, and swing slide block 8 is provided with the swing arm 7 with slide rail, swings slide block
8 are connected with the changeable overrunning clutch mechanism, by the reciprocation conversion mechanism that the straight line for moving back and forth handrail is past
Multiple conversion of motion is the circular motion for swinging slide block, then drive the driving wheel of wheelchair positive by changeable overrunning clutch mechanism or
Counter motion.
The changeable overrunning clutch mechanism includes closing piece connecting rod 13, forward or backwards rotary shaft 9, overdrive clutch 10, institute
State closing piece connecting rod 13 and be connected to rotary shaft 9 by slide block 8 is swung, rotary shaft 9 is connected in wheelchair frame by bearing, rotary shaft 9
It is connected with overdrive clutch 10 forward or backwards, rotary shaft 9 is provided with Timing Belt driving wheel 11, and Timing Belt driving wheel 11 is by same
Step is connected with the 6 Timing Belt driven pulleys 23 coaxial with wheelchair driving wheel 53, and the inner side two ends of Timing Belt driving wheel 11 are provided with springlock
Block 12, two spring closing pieces 12 are separately fixed at the two ends of closing piece connecting rod 13, and closing piece connecting rod 13 is provided with two connecting rod sliders 15,
Rotary shaft 9 is provided with a gear 16, and the side of gear 16 is provided with two radial direction slide rails 17, and during rotate gear 16, connecting rod slider 18 exists
The spacing lower drive closing piece connecting rod 13 of radial direction slide rail 17 moves up and down, and the outside of connecting rod slide rail 17 is provided with two buckles 18 to lock
The state of the connecting rod, the outside of gear 16 is provided with a swingable thumb wheel 19, and thumb wheel 19 is by wheel connecting rod 20 and course changing control hand
Handle 21 connects, and when commutation is needed, rotates course changing control handle 21, drives the occlusion gear 16 of thumb wheel 19, gear 16 to drive closing piece
Connecting rod 13 is moved, so as to drive former locking closing piece to depart from, while another closing piece locking, so as to complete course changing control.
In the present embodiment, the multifunctional wheelchair also includes five seat cushion linkage mechanisms, hand-operated breaking mechanism, scalable receipts
Exhibition shelf mechanism and the seat plate that can conveniently go to toilet.
Five seat cushion linkage mechanisms include seat plate 37, pedal 27, backrest 26, folding back 25 and headrest 24 etc.
Link while five aspects, the front lower portion of seat plate 37 is hinged with pedal connecting rod 28, the lower end of pedal connecting rod 28 is fixed and connected
Pedal 27 is connected to, headrest 24 is attached with folding back 25 by multistage articulated linkage 22 and folding lock 51, and folding is leaned on
The back of the body 25 is attached again by multistage articulated linkage 22, folding lock 51 with backrest 26, and backrest 26 is provided with Lumbar spring steel plate,
Waist rest cushion 40 is close to the setting of Lumbar spring steel plate, and the lower section side of backrest 26 is provided with air pressure rod 31, and air pressure rod 31 is controllable type gas
Pressure bar, one end of air pressure rod 31 is hinged wheelchair frame rear end, and the other end of air pressure rod 31 is hinged seat plate 37, the both sides of seat plate 37
Front end is respectively provided with slide block 321, and backrest 26 is hinged with seat plate 37, and the both sides lower end of backrest 26 is respectively provided with slide block 322, and wheelchair frame is left
A line slide rail and a circular arc 33 are respectively equipped with before and after side, wheelchair frame is also respectively equipped with a straight line before and after right side
Slide rail and a circular arc 33.
Seat plate 37 includes L-shaped plectrum 34, plectrum slide rail 35 and wheelchair frame slide rail, L with the linkage part of pedal 27
Shape plectrum 34 is articulated with wheelchair frame, and L-shaped plectrum 34 is provided with plectrum slide rail 35, plectrum slide rail 35 and wheelchair frame slide rail into
One set angle, the slide block 321 of the front end of seat plate 37 is simultaneously in plectrum slide rail 35 and wheelchair frame slide rail, and slide block 321 is another
Push rod 36 before being hinged one, the other end of front push rod 36 is hinged with pedal connecting rod 28, when slide block 321 is moved forward, plectrum slide rail 35
Progressively overlap with wheelchair frame slide rail, the other end of L-shaped plectrum 34 slowly jack-up seat plate 37, while promoting pedal connecting rod 28
Lift.The linkage part of backrest 26, folding back 25 and headrest 24 includes fixed chute 45, rotatable locking chute 75, push rod
Slide block 29, Lumbar spring steel plate, folding back 25, headrest 24, multistage articulated linkage 22 and slide rail, fixed chute 45 is arranged on wheel
On chair framework, rotatable locking chute 75 is arranged on backrest 26, and when 26 hypsokinesis of backrest, push rod slide block 29 is from fixed chute 45
Abjection is simultaneously moved to rotatable locking chute 75, and by the motion of multistage articulated linkage 22 being closed flat and rolling over for waist rest cushion 40 is driven
Fold against the back of the body 25 and headrest 24 is propped, lock push rod slide block 29 after push rod slide block 29 enters rotatable locking chute 75, lean on
The back of the body 26 can continue to adjust inclination backward.
The hand-operated breaking mechanism is arranged on the lower section for moving back and forth handrail, including disc brake, brake lever, and the one of disc brake
One end of end and brake lever is respectively hinged in wheelchair frame, is attached with brake bracing wire between disc brake and brake lever, is stopped
The top of car handle is provided with spring lock, convenient use person's safe parking when necessary.
The scalable shelf mechanism that takes down the exhibits is arranged at the lower section that wheelchair both sides move back and forth handrail 1, including shelf
47th, articulated linkage 48, shelf 47 is attached with articulated linkage 48 using rotatable lock, after shelf 47 launches, rotation
Turn the knob 49 on shelf 47, the shelf 47 of both sides is connected as one.
The middle part of the seat plate 37 is oval hole, and the soft cushion 41 of two pieces of rectangles, seat are additionally provided with seat plate 37
The oval hole location of plate 37 is provided with and the oval seating pad 42 for coincideing and being divided into two pieces of left and right, the quality of the seating pad 42
It is identical with seat plate 37；The base plate 43 with elliptical shape with seat plate is additionally provided with seat plate 37,37 times sides of seat plate are provided with
Hinge 44, hinge 44 snaps connection base plate 43 by hinge, and the opposite side of base plate 43 is connected under seat plate 37 by lock 46.
Two pieces of left and right described in the present embodiment seating pad 42 can be connected as one with the soft cushion 41 in upper strata, also can independently be used.
The operation principle of the present invention is as follows：
The combination of reciprocation conversion mechanism, changeable overrunning clutch mechanism and hand-operated breaking mechanism is completed the straight line of handrail
Reciprocating motion is converted into circumference reciprocating motion, and then is converted into the circular motion of Timing Belt driving wheel, and then drives the master of wheelchair
Driving wheel is moved forward or backwards and braked.Under the synergy of each connecting rod, rotating shaft, closing piece, slide block, chute and air pressure rod,
Five seat cushion linkage mechanisms complete five aspects such as headrest, folding back, backrest, seat plate and pedal link simultaneously and
Adjustment sitting posture.
Left and right sides status does not remove the cushion and seating pad of left and right when user goes to toilet, and goes to toilet after finishing, can also be certainly
Go and open base plate lock 46, then base plate 43 is flapped toward on one side, and then voluntarily remove base plate and cleaned and installed.
When 26 hypsokinesis certain angle of backrest, push rod slide block 29 is skidded off from fixed chute 45, while into closing piece
Inside 30, and drive closing piece 30 to rotate along axle center 57, after closing piece 30 is rotated by 90 °, shift fork 54 is ejected, prevent closing piece 30 from resetting,
Push rod slide block 29 is locked in inside closing piece 30, no longer has relative motion with backrest；
When backrest 26 resets, push rod slide block 29 is entered in chute, and two grades of shifting blocks 55 are touched after block 56 along axle center
58 rotations, drive shift fork 54 to rotate along axle center 59, and shift fork 54 is released to the locking of closing piece 30, and closing piece 30 is under spring force
Reset, release the locking to push rod slide block 29 and act on, push rod slide block 29 recovers the relative motion trend with backrest 26；
When push rod 60 is under chute effect, when sliding along chute 61, secondary push rod 62 slides along chute 63, while driving waist
Slide the upper end for supporting 64 so that the height of projection of lumbar support 64 declines；
When push rod 60 is moved upwards along chute 61, push rod 65 is promoted to move upward, while rotating along pin joint 66；
Push rod 65 promotes push rod 68 to slide along chute 69 by pin joint 67；Push rod 68 promotes folding back 25 along axle by pin joint 70
The heart 71 is rotated；
When folding back 25 rotates along axle center 71, rocking bar 501 rotates along axle center 72, and by pin joint 73, pulling is shaken
Bar 502 rotates along pin joint 74, and headrest 24 opens therewith.
Scalable shelf 47 of taking down the exhibits carries out stretching and takes down the exhibits by articulated linkage 48, when using shelf 47, by both sides
Shelf 47 is boosted, and rotation is laid flat, and after shelf 47 launches, rotates the knob 49 on shelf 47, the shelf 47 of both sides
Connect as one, left and right sides shelf 47 also can be used individually.
The above is only the preferred embodiment of the present invention, is not limited to the present invention, it is noted that for this skill
For the those of ordinary skill in art field, on the premise of without departing from the technology of the present invention principle, can also make it is some improvement and
Modification, these are improved and modification also should be regarded as protection scope of the present invention.
Claims (9)
1. a kind of wheelchair frame of the multifunctional wheelchair, including bottom equipped with universal wheel and driving wheel, wheelchair frame be provided with seat plate,
Backrest and pedal, it is characterised in that：Reciprocation conversion mechanism is separately installed with the both sides of wheelchair frame handrail, it is described
Reciprocation conversion mechanism includes moving back and forth handrail, support bar, pulley, guide rail, swing connecting bar, rotary shaft, the pendulum with slide rail
Lever, swing slide block and a set of changeable overrunning clutch mechanism, the reciprocating motion handrail lower section is by support bar and setting
Pulley connection in guide rail, the lower section of pulley is connected with two swing connecting bars being hinged, described swing arm one end with slide rail
It is hinged with swing connecting bar, the other end of the swing arm with slide rail is connected in wheelchair frame by bearing, the swing arm with slide rail
Swing slide block is inside provided with, slide block is swung and is connected with the changeable overrunning clutch mechanism, by the reciprocating motion interpreter
The straight reciprocating motion for moving back and forth handrail is converted into structure the circular motion for swinging slide block, then by changeable overdrive clutch machine
Structure drives the driving wheel of wheelchair to move forward or backwards；
The changeable overrunning clutch mechanism includes closing piece connecting rod, forward or backwards rotary shaft, overdrive clutch, the closing piece connecting rod
Slide block will be swung and be connected to rotary shaft, rotary shaft is connected in wheelchair frame by bearing, and rotary shaft surmounts with forward or backwards
Clutch is connected, and rotary shaft is provided with Timing Belt driving wheel, and Timing Belt driving wheel is coaxial with wheelchair driving wheel by Timing Belt
Timing Belt driven pulley connects, and Timing Belt driving wheel inner side two ends are provided with spring closing piece, and two spring closing pieces are separately fixed at closing piece
The two ends of connecting rod, closing piece connecting rod is provided with two connecting rod sliders, and rotary shaft is provided with a gear, and gear side is provided with two radial directions
Slide rail, during rotate gear, connecting rod slider moves up and down in the spacing lower drive closing piece connecting rod of radial direction slide rail, and connecting rod slide rail outside sets
Have two buckles to lock the state of the connecting rod, gear outside is provided with a swingable thumb wheel, thumb wheel by wheel connecting rod with
Course changing control handle connects, and when commutation is needed, rotates course changing control handle, drives thumb wheel occlusion gear, gear driven closing piece
Link motion, so as to drive former locking closing piece to depart from, while another closing piece locking, so as to complete course changing control.
2. multifunctional wheelchair according to claim 1, it is characterised in that：Also include five seat cushion linkage mechanisms, five seats
Chair link gear includes being linked while seat plate, pedal, backrest, folding back and headrest, and seat plate front lower portion is hinged
Have a pedal connecting rod, pedal connecting rod lower end is fixedly connected with pedal, headrest and folding back by multistage articulated linkage and
Fold latch button is attached, and folding back is attached again by multistage articulated linkage, folding lock with backrest, and backrest is provided with
Lumbar spring steel plate, waist rest cushion is close to the setting of Lumbar spring steel plate, and the lower section side of backrest is provided with air pressure rod, and air pressure rod is controllable
Formula air pressure rod, one end of air pressure rod is hinged wheelchair frame rear end, and the other end of air pressure rod is hinged seat plate, seat plate both sides front end
Slide block is respectively provided with, backrest is hinged with seat plate, backrest both sides lower end is respectively provided with slide block, wheelchair frame is respectively equipped with one before and after left side
Individual line slide rail and a circular arc, are also respectively equipped with a line slide rail before and after wheelchair frame right side and a circular arc is slided
Rail.
3. multifunctional wheelchair according to claim 2, it is characterised in that：The linkage portion subpackage of the seat plate and pedal
L-shaped plectrum, plectrum slide rail and wheelchair frame slide rail are included, L-shaped plectrum is articulated with wheelchair frame, L-shaped plectrum is provided with plectrum cunning
, into a set angle, the slide block of seat front edge of board is simultaneously located at plectrum slide rail and wheelchair for rail, plectrum slide rail and wheelchair frame slide rail
In framework slide rail, slide block be separately hinged one before push rod, the front push rod other end and pedal rod hinge connection when slide block is moved forward, are dialled
Piece slide rail progressively overlaps with wheelchair frame slide rail, the other end of L-shaped plectrum slowly jack-up seat plate, while promoting pedal connecting rod
Lift.
4. multifunctional wheelchair according to claim 2, it is characterised in that：The linkage of the backrest, folding back and headrest
Part includes fixed chute, rotatably locks chute, push rod slide block, Lumbar spring steel plate, folding back, headrest, multistage is hinged
Connecting rod and slide rail, fixed chute is arranged in wheelchair frame, and rotatable locking chute is arranged on backrest, when backrest hypsokinesis,
Push rod slide block is deviate from from fixed chute and to rotatable locking chute movement, by the motion of multistage articulated linkage waist rest cushion is driven
Be closed flat and folding back and headrest are propped, by push rod slider locks after push rod slide block enters rotatable locking chute,
Backrest can continue to adjust inclination backward.
5. multifunctional wheelchair according to claim 1, it is characterised in that：The seat plate middle part is oval hole, seat
It is additionally provided with the soft cushion of two pieces of rectangles on the plate of position, the oval hole location of seat plate is provided with coincide and be divided into left and right two with oval
The seating pad of block, the quality of the seating pad is identical with seat plate.
6. the multifunctional wheelchair according to any one of claim 1-5, it is characterised in that：Also include hand-operated breaking mechanism,
Hand-operated breaking mechanism is arranged on the lower section for moving back and forth handrail, including disc brake, brake lever, one end of disc brake and brake lever
One end is respectively hinged in wheelchair frame, is attached with brake bracing wire between disc brake and brake lever, and the top of brake lever sets
There is spring to latch.
7. multifunctional wheelchair according to claim 6, it is characterised in that：Also include the scalable shelf mechanism that takes down the exhibits, institute
State the scalable shelf mechanism that takes down the exhibits and be arranged at the lower section that wheelchair both sides move back and forth handrail, including shelf, articulated linkage, put
Thing plate is attached with articulated linkage using rotatable lock, after shelf launches, the knob on shelf is rotated, by both sides
Shelf connect as one.
8. multifunctional wheelchair according to claim 5, it is characterised in that：It is additionally provided with the seat plate with seat plate with ellipse
The base plate of toroidal, side is provided with hinge under seat plate, and hinge snaps connection base plate by hinge, and the opposite side of base plate is by lock
Button is connected under seat plate.
9. multifunctional wheelchair according to claim 5, it is characterised in that：Described two pieces of seating pads in left and right and the soft seat in upper strata
Pad can be connected as one, and also can independently be used.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510204817.5A CN104771281B (en) | 2015-04-27 | 2015-04-27 | Multifunctional wheelchair |
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| CN201510204817.5A CN104771281B (en) | 2015-04-27 | 2015-04-27 | Multifunctional wheelchair |
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| CN104771281A CN104771281A (en) | 2015-07-15 |
| CN104771281B true CN104771281B (en) | 2017-05-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510204817.5A Active CN104771281B (en) | 2015-04-27 | 2015-04-27 | Multifunctional wheelchair |
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| CN (1) | CN104771281B (en) |
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| CN105266454A (en) * | 2015-09-11 | 2016-01-27 | 无锡豪思纺织品有限公司 | New body-building sofa |
| CN105326613A (en) * | 2015-11-17 | 2016-02-17 | 澳斯卡（香港）国际有限公司 | Exercise rehabilitation wheelchair |
| CN106724220B (en) * | 2016-12-20 | 2023-07-14 | 洛阳工岩科技有限公司 | Multifunctional folding seat |
| CN106696008A (en) * | 2017-03-27 | 2017-05-24 | 响水县红太阳木业有限公司 | Red wood plate cutting equipment |
| CN116301194A (en) * | 2017-12-29 | 2023-06-23 | 上海邦邦机器人有限公司 | Mechanism and method for controlling movement of swinging equipment |
| CN108030602A (en) * | 2018-01-18 | 2018-05-15 | 陈丰 | A kind of medical treatment and nursing wheelchair |
| CN108721007B (en) * | 2018-06-21 | 2021-09-03 | 苏州凯道智能设备有限公司 | Folding electric wheelchair |
| CN108852654A (en) * | 2018-08-30 | 2018-11-23 | 常熟市平方轮椅有限公司 | A kind of wheelchair that handrail can be widened |
| CN110916919B (en) * | 2019-11-27 | 2021-08-31 | 深圳零壹建筑设计有限公司 | Multifunctional electric folding wheelchair |
| CN111802950A (en) * | 2020-07-22 | 2020-10-23 | 温州医科大学 | Multifunctional lifting chair for old people |
| CN113456366B (en) * | 2021-06-22 | 2023-12-29 | 椅夫健康(厦门)智能科技有限公司 | Electric wheelchair with dual-function rotary telescopic synchronous backrest cushion and working method thereof |
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| JP2001112819A (en) * | 1999-10-18 | 2001-04-24 | Junichi Yoshimori | Wheelchair with horizontality maintaining device |
| CN200973787Y (en) * | 2006-11-27 | 2007-11-14 | 朱从伟 | Closestool type self-help wheelchair |
| CN101467930A (en) * | 2007-12-28 | 2009-07-01 | 沈阳工业大学 | Limb rehabilitation training vehicle |
| JP2010246828A (en) * | 2009-04-20 | 2010-11-04 | Japan Labour Health & Welfare Organization | Foot-driven wheelchair |
| CN102440874B (en) * | 2010-10-14 | 2013-09-11 | 财团法人金属工业研究发展中心 | Power driving device for manual wheelchair |
| CN201840604U (en) * | 2010-11-02 | 2011-05-25 | 许晓华 | Clutch device of speed reducer |
| CN202446372U (en) * | 2011-12-02 | 2012-09-26 | 浙江大学 | Labor-saving wheel chair |
| CN203790162U (en) * | 2014-03-13 | 2014-08-27 | 深圳市宝安区人民医院 | Wheelchair with movable table board |
| CN204698851U (en) * | 2015-04-27 | 2015-10-14 | 金立新 | Multifunction wheelchair |
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